222100111120122 has 64 divisors (see below), whose sum is σ = 519536222352000. Its totient is φ = 70136364374784.

The previous prime is 222100111120087. The next prime is 222100111120123. The reversal of 222100111120122 is 221021111001222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 222100111120095 and 222100111120104.

It is not an unprimeable number, because it can be changed into a prime (222100111120123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154428754 + ... + 155860322.

It is an arithmetic number, because the mean of its divisors is an integer number (8117753474250).

Almost surely, 2^{222100111120122} is an apocalyptic number.

222100111120122 is an abundant number, since it is smaller than the sum of its proper divisors (297436111231878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222100111120122 is a wasteful number, since it uses less digits than its factorization.

222100111120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582812 (or 1582806 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 222100111120122 its reverse (221021111001222), we get a palindrome (443121222121344).

The spelling of 222100111120122 in words is "two hundred twenty-two trillion, one hundred billion, one hundred eleven million, one hundred twenty thousand, one hundred twenty-two".